Oil injector



FIG. 1 is a perspective view of an oil injector showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view.

The portions shown in broken lines are for the purpose of illustratingenvironmental structure only and form no part of the claimed design.

CLAIM We claim the ornamental design for an oil injector, as shown anddescribed.